Full exhaust system on xr600r

Well I will be having my new full system on my bike in about 4 days from now... Am i going to need to rejet? or should I be able to get by without it? its the Big Gun full system

You will have to rejet. Use a 165 main and a 65 pilot and drop the clip down one on the needle and remove the snorkle from the airbox. You should also have a Uni Or K&N Air filter. The jetting could vary depending on elevation. This works for 0-3000 feet. Use 162/62 for 3000+.:mad:

You will have to rejet. Use a 165 main and a 65 pilot and drop the clip down one on the needle and remove the snorkle from the airbox. You should also have a Uni Or K&N Air filter. The jetting could vary depending on elevation. This works for 0-3000 feet. Use 162/62 for 3000+.:mad:

Oh ok, I was just curious the manufacturer says that the jetting is not necessary...

Pretty much any time you make the motor breath easier you will need to rejet.

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